Lawn mower chassis structure

Abstract

The utility model relates to a mowing machine chassis structure which comprises a chassis and wheels installed at the four corners of the chassis, the chassis comprises an upper cover plate, supporting frames installed on the two sides of the upper cover plate, a front panel and a baffle, and the front panel and the baffle are installed on the other two sides of the upper cover plate. A plurality of reinforcing ribs fixedly connected with the tops of the supporting frames are arranged on the two sides of the upper cover plate, mounting grooves are formed in the two ends of the two supporting frames, the wheels are mounted in the mounting grooves through adjusting mechanisms, and a driving mechanism used in cooperation with the adjusting mechanisms is mounted at the bottom of the upper cover plate; in the using process, the heights of the two sides of the chassis can be adjusted and lifted at the same time, and only the height of one side of the chassis can be adjusted independently according to specific using requirements, so that the flexibility of the lawn mower in the using process is improved, and the lawn mower is more convenient for people to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the lawn mower technical field, concretely relates to a lawn mower chassis structure. BACKGROUND

[0002] The lawn mower is also called grass trimmer, grass cutter, lawn trimmer and the like. The lawn mower is a mechanical tool for trimming lawns, vegetation and the like. It is composed of a cutter head, an engine, a walking wheel, a walking mechanism, a blade, a handrail and a control part. The cutter head is mounted on the walking wheel, and the engine is mounted on the cutter head. The blade is mounted on the output shaft of the engine. The blade is improved in speed by the high-speed rotation of the engine, thereby saving the working time of the grass trimmer and reducing a large amount of human resources.

[0003] During use of the lawn mower, the adjustment of the height of the chassis directly affects the mowing effect of the lawn mower. If the height of the chassis is too low, the lawn mower can not contact the ground, resulting in overgrown lawns. If the height of the chassis is too high, the lawns can not be mowed neatly, affecting the aesthetic degree. Therefore, the height of the chassis needs to be adjusted according to the specific use during use. Although the height of the chassis can be adjusted during use of the existing lawn mower, the two sides of the chassis are simultaneously raised or lowered during adjustment. The height of one side of the chassis cannot be adjusted independently according to the specific use requirement, thereby reducing the flexibility of the lawn mower during use, and thus the lawn mower is inconvenient to use. UTILIZABLE CONTENT

[0004] The utility model aims at solving the above-mentioned problems and provides a lawn mower chassis structure which is simple in structure and reasonable in design.

[0005] The utility model achieves the above-mentioned purposes through the following technical solutions:

[0006] A lawn mower chassis structure comprises a chassis, wheels mounted at four corners of the chassis, the chassis comprises an upper cover plate, support frames mounted at two sides of the upper cover plate, and front panels and baffles mounted at the other two sides of the upper cover plate, two ends of each of the two support frames are provided with a mounting groove, and the wheels are mounted in the mounting grooves through an adjusting mechanism, and a driving mechanism cooperated with the adjusting mechanism is mounted at the bottom of the upper cover plate to adjust the height of the chassis.

[0007] As a further optimization scheme of the utility model, the adjusting mechanism comprises a protection box mounted in the mounting groove, an adjusting rod rotatably connected in the protection box, and a driven wheel mounted outside the adjusting rod and located in the protection box, both ends of the adjusting rod extend to the outside of the protection box and are both provided with a mounting plate, and the wheel is rotatably connected between the two mounting plates.

[0008] As a further optimization scheme of the utility model, the driving mechanism includes the installation box installed at the bottom of the upper cover plate, two rotating rods rotatably connected in the installation box, and two gears arranged outside the two rotating rods, both ends of the rotating rod extend into the corresponding two protection boxes and are both installed with driving wheels engaged with driven wheels.

[0009] As a further optimization scheme of the utility model, the inside of the installation box is installed with a double-shaft air cylinder, both output ends of the double-shaft air cylinder are installed with racks, and the two racks are engaged with the two gears respectively.

[0010] As a further optimization scheme of the utility model, the gear is sleeved outside the rotating rod, the inside of the rotating rod is provided with a moving groove, the inside of the moving groove is slidably connected with a sliding block, the top of the rotating rod is provided with a strip-shaped opening communicated with the moving groove, the top of the sliding block is fixedly connected with the inner wall of the gear through a connecting block, and the connecting block is located in the strip-shaped opening, one side of the sliding block is installed with a spring fixedly connected with the inner wall of the moving groove, and the other side of the sliding block is installed with a pull rod.

[0011] As a further optimization scheme of the utility model, one end of the pull rod extends to the outside of the rotating rod and is rotatably connected with a fixed block, one side of one of the supporting frames is installed with a limiting plate in L-shaped structure, the inner side of the bending part of the limiting plate is installed with a fixed rod, and the fixed block is provided with a fixed groove matched with the fixed rod.

[0012] As a further optimization scheme of the utility model, both sides of the upper cover plate are provided with a plurality of reinforcing ribs, and the bottom of the plurality of reinforcing ribs is fixedly connected with the top of the supporting frame.

[0013] The utility model discloses the beneficial effect lies in: the utility model discloses the process of using not only can the height of the chassis both sides simultaneously adjust lifting, and can according to the specific use demand, only single -sided height of the chassis is adjusted, thereby improve the flexibility of the mower in the process of using, make people more convenient to use. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic diagram of the utility model;

[0015] Figure 2 It is the first sectional structure schematic diagram of the utility model Figure 1 ;

[0016] Figure 3 It is the second sectional structure schematic diagram of the utility model Figure 1 ;

[0017] Figure 4 It is the local structure schematic diagram of the rotating rod of the utility model;

[0018] Figure 5 is the utility model Figure 2 the enlarged view of A in the middle;

[0019] Figure 6 is the utility model Figure 3 the enlarged view of B in the middle;

[0020] Figure 7 is the utility model Figure 4 the enlarged view of C in the middle.

[0021] In the figure: 1, the chassis;11, the upper cover plate;12, the support frame;13, the front panel;14, the baffle;2, the wheel;21, the installation slot;22, the protection box;23, the adjusting rod;24, the driven wheel;25, the mounting plate;3, the installation box;31, the rotating rod;32, the gear;33, the driving wheel;4, the double-shaft pneumatic cylinder;41, the rack;5, the moving slot;51, the sliding block;52, the strip-shaped port;53, the connecting block;54, the spring;55, the pull rod;6, the fixed block;61, the limiting plate;62, the fixed rod;63, the fixed slot. DETAILED DESCRIPTION

[0022] The application will be described in further detail below with reference to the drawings. It is necessary to point out that the following detailed description is only used to further illustrate the application and cannot be understood as limiting the scope of protection of the application, and the skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0023] Example 1

[0024] As Figures 1-7As shown, a mower chassis structure, comprising a chassis 1, and wheels 2 installed at four corners of the chassis, the chassis 1 comprising an upper cover plate 11, support frames 12 installed on both sides of the upper cover plate 11, and front panels 13 and baffles 14 installed on the other two sides of the upper cover plate 11, both ends of the two support frames 12 are provided with mounting grooves 21, and the wheels 2 are installed in the mounting grooves 21 through an adjusting mechanism, the bottom of the upper cover plate 11 is provided with a driving mechanism used in cooperation with the adjusting mechanism to adjust the height of the chassis 1, both sides of the upper cover plate 11 are provided with a plurality of reinforcing ribs fixedly connected to the top of the support frame 12, which improves the strength of the chassis 1 and makes the chassis 1 not easy to deform, the adjusting mechanism comprises a protection box 22 installed in the mounting groove 21, an adjusting rod 23 rotatably connected in the protection box 22, and a driven wheel 24 installed outside the adjusting rod 23 and located in the protection box 22, both ends of the adjusting rod 23 extend to the outside of the protection box 22 and are both provided with a mounting plate 25, the wheel 2 is rotatably connected between the two mounting plates 25, the driving mechanism comprises a mounting box 3 installed at the bottom of the upper cover plate 11, two rotating rods 31 rotatably connected in the mounting box 3, and two gears 32 arranged outside the two rotating rods 31, both ends of the rotating rod 31 extend into the corresponding two protection boxes 22 and are both provided with a driving wheel 33 engaged with the driven wheel 24, a double-shaft pneumatic cylinder 4 is installed in the inside of the mounting box 3, both output ends of the double-shaft pneumatic cylinder 4 are provided with a rack 41, the double-shaft pneumatic cylinder 4 is a pneumatic element capable of generating force in two directions and having an actuator, the two racks 41 are engaged with the two gears 32 respectively, the protection boxes 22 and the mounting box 3 are provided to protect the driving wheel 24, the driven wheel 24, the gears 32 and the racks 41, so as to prevent weeds from winding around the gears during mowing and affecting the engagement effect.

[0025] It should be noted that, when the height of the chassis 1 needs to be adjusted during use, the double-shaft pneumatic cylinder 4 drives the two racks 41 to move towards each other or away from each other, when the rack 41 moves, the gear 32 rotates, at this time, the rotating rod 31 drives the driving wheel 33 to rotate, under the engagement of the driving wheel 33 and the driven wheel 24, the driven wheel 24 rotates, thereby the adjusting rod 23 drives the two mounting plates 25 to rotate, and then drives the wheel 2 to rotate, so as to adjust the height of the chassis 1, so that the chassis of the mower is suitable for different occasions and is more convenient for people to use.

[0026] Embodiment 2

[0027] As Figures 1-7As shown, the embodiment is different from example 1 in that the gear 32 is sleeved outside the rotating rod 31, the rotating rod 31 is internally provided with a moving groove 5, the moving groove 5 is internally connected with a sliding block 51, the rotating rod 31 is provided at the top with a strip-shaped opening 52 communicated with the moving groove 5, the sliding block 51 is fixedly connected with the inner wall of the gear 32 through a connecting block 53, and the connecting block 53 is located in the strip-shaped opening 52 and is attached to the inner wall of the strip-shaped opening 52 on both sides, the sliding block 51 is provided on one side with a spring 54 fixedly connected with the inner wall of the moving groove 5, and the other side of the sliding block 51 is provided with a pull rod 55, when the gear 32 is engaged with the gear rack 41, the spring 54 is in a compressed state, when the gear 32 is separated from the gear rack 41, the spring 54 is in an extended state, one end of the pull rod 55 extends to the outside of the rotating rod 31 and is rotatably connected with a fixed block 6, one side of one of the supporting frames 12 is provided with a limiting plate 61 in an L-shaped structure, the pull rod 55 passes through the supporting frame 12 and is slidably connected with the supporting frame 12, the inner side of the bent part of the limiting plate 61 is provided with a fixed rod 62, the fixed block 6 is provided with a fixed groove 63 matched with the fixed rod 62, one end of the fixed rod 62 is in a conical structure, so that the fixed groove 63 is conveniently sleeved outside the fixed rod 62, when the fixed groove 63 is sleeved outside the fixed rod 62, the gear 32 is in an engaged state with the gear rack 41, when the fixed groove 63 is separated from the fixed rod 62, the gear 32 is in a separated state with the gear rack 41.

[0028] The further improved feature of the embodiment is that when only the height of one side of the chassis 1 needs to be adjusted, the fixed block 6 can be pushed to the side close to the supporting frame 12 to separate the fixed groove 63 from the fixed rod 62, then the fixed block 6 is rotated to a position where the limiting plate 62 does not interfere, and then the fixed block 6 is pulled to the side away from the supporting frame 12, at this time the pull rod 55 will drive the sliding block 51 to move, and under the driving of the sliding block 51, the gear 32 will be separated from the gear rack 41, at this time the double-shaft air cylinder 4 is driven again, and only the gear 32 and the gear rack 41 in engagement will work, so that the one side of the chassis 1 can be individually lifted and adjusted, effectively improving the overall applicability of the device.

[0029] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A lawnmower chassis structure comprising a chassis (1) and wheels (2) mounted at the corners of the chassis, characterised in that, The chassis (1) comprises an upper cover plate (11), support frames (12) installed on both sides of the upper cover plate (11), and front panels (13) and baffles (14) installed on the other two sides of the upper cover plate (11), both ends of the two support frames (12) are provided with mounting grooves (21), and the wheels (2) are installed in the mounting grooves (21) through an adjusting mechanism, and a driving mechanism cooperating with the adjusting mechanism is installed at the bottom of the upper cover plate (11) to adjust the height of the chassis (1).

2. A lawnmower chassis structure as claimed in claim 1, characterised in that: The adjusting mechanism comprises a protective box (22) installed in the mounting groove (21), an adjusting rod (23) rotatably connected in the protective box (22), and a driven wheel (24) installed outside the adjusting rod (23) and located in the protective box (22), both ends of the adjusting rod (23) extend to the outside of the protective box (22) and are both provided with mounting plates (25), and the wheel (2) is rotatably connected between the two mounting plates (25).

3. A lawnmower chassis structure as claimed in claim 1, wherein: The driving mechanism comprises a mounting box (3) installed at the bottom of the upper cover plate (11), two rotating rods (31) rotatably connected in the mounting box (3), and two gears (32) arranged outside the two rotating rods (31), both ends of the rotating rod (31) extend into the corresponding two protective boxes (22) and are both provided with driving wheels (33) meshing with the driven wheels (24).

4. A lawnmower chassis structure as claimed in claim 3, wherein: The inside of the mounting box (3) is provided with a double-shaft air cylinder (4), both output ends of the double-shaft air cylinder (4) are provided with racks (41), and the two racks (41) are respectively meshed with the two gears (32).

5. A lawnmower chassis structure as claimed in claim 3, wherein: The gear (32) is sleeved outside the rotating rod (31), the inside of the rotating rod (31) is provided with a moving groove (5), the inside of the moving groove (5) is slidably connected with a sliding block (51), the top of the rotating rod (31) is provided with a strip-shaped opening (52) communicating with the moving groove (5), the top of the sliding block (51) is fixedly connected with the inner wall of the gear (32) through a connecting block (53), and the connecting block (53) is located in the strip-shaped opening (52), one side of the sliding block (51) is provided with a spring (54) fixedly connected with the inner wall of the moving groove (5), and the other side of the sliding block (51) is provided with a pull rod (55).

6. A lawnmower chassis structure according to claim 5, wherein: One end of the pull rod (55) extends to the outside of the rotating rod (31) and is rotatably connected with a fixed block (6), one side of one of the support frames (12) is provided with a limiting plate (61) in L-shaped structure, the inner side of the bending part of the limiting plate (61) is provided with a fixed rod (62), and the fixed block (6) is provided with a fixed groove (63) cooperating with the fixed rod (62).

7. A lawnmower chassis structure as claimed in claim 5, wherein: Both sides of the upper cover plate (11) are provided with a plurality of reinforcing ribs, and the bottoms of the plurality of reinforcing ribs are fixedly connected with the tops of the support frames (12).

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